Because I travel alone, I tend to put leftovers or even raw things like meat into one-portion packets and then stuff them in the freezer. I also take things out of their original packages (like ice cream bars) to save room. The result is lots of little things in my freezer.
I have the typical Dometic motorhome freezer that had only one shelf. Because everything got piled on top of everything else, I'd have packages slide out onto the floor every time I opened the door. So, I finally received the extra freezer shelf I ordered from Dometic. It cost me $40 plus shipping, but it makes for a lot neater freezer and stuff does not slide out as before. If I have something large to freeze, I can always easily remove the extra shelf.